Improved apparatus tor producing sulphurous acid



.passes ott asluseless for this purpose;

Ain the drawing represents the oven or furnace.- lThe same contains alhorizontal partition, a, which dilllnitrd giet-rt eine @uw 4MDRI'IZ HATSGH'EK, `OF PESTH, HUNGARY.

Leners Parent No. 101,011, dated March. 22, '1570.

IMPROVE!) APPARATUS FOR PROD'UCING- SULPHURO'US ACID.

'The Schedule referred to in these 'Letten Patent making part of the name To all whom it may concern Be it known that I, Mom'rz HA'rscHEK, of Pest-l1,

, Hungary, have-invented a new `and improved Apparatus :for Producing Dissolved Siilphurous Acid; and

' myimproved apparatus.

Figure 2 is al horizontal section of the same. l Figure 3 is a detail vertical section ofthe detaining chamber, showing a modified construction.

Similar letters of reference indicate corresponding parts. y l l This invention has for its object to provide an apparatus I ywvhicha solution of sulphurous acid Y (SOl-l-IIO) may be readily produced, such acid being 'used for distilliug and brewing, and for other useful purposes,

The inventionconslsts in the arrangement and construction of a furnace in`which the sulphur is burned and a current-of air brought to it, and of a detainingchamberand combining-column, the latter receiving the water at the upper end and spreading it into a fine spray, in which state it is most apt te take up the sulphur and the oxygen of the air, while the nitrogen' vides the lire-chambeb from the upper melting-chamber c.' The smoke-dues d (l vfrom the fire-chamber embrace the melting-chamber so as to thoroughly heat the same. A

In the fire-chamber is a grate, e, on which wood or other suitable fuelcan be consumed. l

'lhc sulphur to be evaporated is, in bars or other form, placed into a pan, f, in the 'melting-chamber, und is soon liquelied by the heat and then ignited. Atmospheric air is constantly brought to the burning sulphur through an opening, g, in theI furnace. l

By a pipe, B, the sulphurous vapor, combined with thc air, is carried to thc combining-column C.

In thi` pipo is arranged a detaining-box,'D,which.

has several vertical plates,n,'by which any solid. or non-vaporous' substance carried along by the vapors will -be arrested. n Instead of -the plates at, perforated partit-ions h, as in fig. 3, or filters, may be employed.

The column C isa vertical'cyliuder, made of sheet metal or other suitable material, and provided with three, or m'oreor less, horizontal plates 'i t' or sieves. Water is, through a pipe, 7', carried into the upper end of the column, and flows rst upon a block, le, held in said column. By'this blockthe Water is spread andA thrown in a line spray upon the sieves t', through which it trickles in very ne drops, being detained as it de scends by such sieves. yWhile the water passes down it absorbs from the vapors that enterthe column through the pipe B everything but the nitrogen, which passes up in the column, and 4thence into thesame chimney E in which the smoke is carried ot'i. The

sulphurous water falls' to the bottoni of the column,

and can be drawn o through a pipe,` l.

. In order to facilitate the escape of thenitrogen, and also a perfect draught in the meltingichamber and pipe B, I have surrounded thetwo parts d m of the chimney with a sleeve, o, of some bad heat-conducting materiaLf Thereby the air passing through the part m will become heated by the escaping smoke, and will, consequently, escape rapidly.

Having thusl described my invention, I claim as new and desire to secure by ,Letters Patenty 1. Producing a s olution'of sulphurous acid by injecting `upon the ascending fumes of sulphura descending stream'of watery spray, to combine with and condense the same iuuthehmanner described.

2. lbe arlangementof the retarding-box D', combin-A ing-column G, water-spreader K, and Ainlet-pipe j, as and for the purposespeciiied.

3. A'Ihe method of mak-ing dilute Sulphurous acid by passing a current of air across the pau f, carrying 'th product thus formed through the detainingbox D, then up through a column, '0, and against the descending watery spray, iu thc manner set forth.

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